Acetylcholine ach - Study guides, Class notes & Summaries

PMC Prep Exam 1 Questions & Answers 2024/2025 Describe Autonomic Nervous System (ANS). What are autonomic functions? - ANSWERSANS functions are not under direct conscious control (happen without thinking). E.g. Cardiac function, endothelial function, digestion, blood flow to organs etc. What is a neurotransmitter? - ANSWERSa chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction, causes the transf...

Phosphatase correct answers This myosin-actin interaction forms the basis of the cross-bridge cycle (CBC), which causes muscle contraction, as in skeletal -bridge cycling (CBC) requires phosphorylation of the myosin light chain (LC20). A .............. is an enzyme that removes a phosphate group from its substrate composed of actin and are dynamic and are lengthen by polymerization or shortened by depolarization correct answers microfilaments are provide strucule support for the cell ...

PCOL 824 Final Exam with Complete Solutions Acetylcholine - Answer-Endogenous ligand for nicotinic and muscarinic receptors. Easily hydrolyzed by acetylcholinesterase. Methacholine - Answer-Methylated version of ACh makes it less susceptible to hydrolysis. Has high affinity for muscarinic receptors and no affinity for nicotinic receptors. Carbachol - Answer-Transaminated version of ACh that results in negligible hydrolysis for longer half life. Has normal affinity for nicotinic receptors...

Complete Exam 1 Study Guide-NUR2474 Pharmacology Quiz 1 1. Nursing process as it relates to med administration a. 6 Rights of Med Admin i. Patient ii. Drug iii. Dose iv. Time v. Route vi. Documentation b. Extra rights to med admin i. Assessment ii. Evaluation iii. Patient to education iv. Patient to refuse care c. Biggest medication error is misinterpreting prescriptions i. Do not assume if something is unclear about an order. Clarify with prescriber. ii. TORB and VORB ...

NURS 406 Pharmacology Nursing Exam Guide Latest Update 100%Verified Solutions. What are the major functions of the α1 receptor? - CORRECT ANSWER--Increase vascular smooth muscle contraction, increase pupillary dilator muscle contraction (mydriasis), increase intestinal and bladder sphincter muscle contraction What are the major functions of the α2 receptor? - CORRECT ANSWER--Decrease sympathetic outflow, decrease insulin release, decrease lipolysis, increase platelet aggregation, decreas...

PMHNP 1 Final Exam Questions and Answers Rated A+ _______ is produced in the locus ceruleus of the pons Norepinephrine The hallmark symptom in _______ is a disturbance of consciousness accompanied by changes in cognitive function delirium Disturbance of consciousness develops over a short time, usually hours to days is seen in _______ delirium How are Sleep-rest cycle different in patients with delirium? clients are awake at night andsleep during the day. Impaired _______ and _...

Bio 264 Exam 3 Questions and Answers Already Passed What structure runs from Z line to Z line? Sarcomere The movement of the troponin-tropomyosin complex requires _______ Ca2+. The actin filament is a polymer formed from 300 to 400 globular subunits called ______ G- actin. A myofilament is the _________. Protein strand composed of actin or myosin T tubules ________. Conduct action potentials deep into the muscle cell A drug that interferes with the active transport of calci...

Action Potential-release of Acetylcholine (Ach) at the neuromuscular junction (NMJ) correct answers MC #1 MC #2 correct answers Ach binds to receptors causing AP to "spread" over the muscle fiber in the T-tubules and stimulate the SR MC #3 correct answers AP stimulates release of Ca2+ from SR MC #4 correct answers Ca2+ binds to troponin causing a shift in the tropomyosin revealing active sites on actin MC #5 correct answers Breakdown (hydrolysis) ATP "cocks" myosin head MC #6 ...

Action potential Neural impulse; brief electircal charge that travels down axon when fired Adrenal glands 2 Small glands located on top of kidneys that produce steroid hormones, adrenaline, noradrenaline; help control heart rate, blood pressure, bodily functions All-or-none law Process by which neuron fires is all or none; either receives sufficient stim from surrounding cells to fire or doesnt; no variation in size of electrical impulse once fired Amygdala Portion of li...

Neurological review - Answer -CNS-brain and spinal cord (central nervous system) -PNS-includes cranial and spinal nerves; autonomic and somatic nervous systems (peripheral nervous system) -basic functional unit-neuron; dendrites, cell body, axon *neurotransmitters used to comm between neurons Autonomic Nervous System - Answer -sympathetic-"fight or flight" responses; main nt is norepi -parasympathetic-"rest and digest"; controls mostly visceral functions; main nt is acetylcholin...